Ad
related to: marca de agua word
Search results
Results From The WOW.Com Content Network
A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper. [1]
The term digital watermark was coined by Andrew Tirkel and Charles Osborne in December 1992. The first successful embedding and extraction of a steganographic spread spectrum watermark was demonstrated in 1993 by Andrew Tirkel, Gerard Rankin, Ron Van Schyndel, Charles Osborne, and others.
The test for qualifying a diving watch to bear the word "diver's" on the dial is for repeated usage in a given depth and includes safety margins to take factors into account like aging of the seals, the properties of water and seawater, rapidly changing water pressure and temperature, as well as dynamic mechanical stresses encountered by a ...
In both the Portuguese and English versions of the lyrics, "it" is a stick, a stone, a sliver of glass, a scratch, a cliff, a knot in the wood, a fish, a pin, the end of the road, and many other things, although some specific references to Brazilian culture (festa da cumeeira, garrafa de cana), flora (peroba do campo), folklore and fauna (Matita Pereira) were intentionally omitted from the ...
A wordmark or word mark is a text-only statement of the name of a product, service, company, organization, or institution which is used for purposes of identification and branding. A wordmark can be an actual word (e.g., Apple), a made-up term that reads like a word (e.g., iPhone), or an acronym, initialism, or series of letters (e.g., IBM).
One technique for audio watermarking is spread spectrum audio watermarking (SSW). In SSW, a narrow-band signal is transmitted over a much larger bandwidth such that the signal energy presented in any signal frequency is undetectable.
Copy-evident documents have features that make it detectable that a copy is not the original.. In security printing, various methods such as void pantograph are used to create patterns that are hard to copy exactly and when copied inexactly produces an easily detectable image.
A word, phrase, design, or a combination that identifies and distinguishes each party's goods or services from those of others and indicates their sources. Technical inventions, such as chemical compositions like pharmaceutical drugs, mechanical processes like complex machinery, or machine designs that are new, unique, and usable in some type ...